<div class="doc-item" id="doc-618"><h2 class="doc-item-name">await<span class="namespace">(clojure.core)</span></h2><ul class="var-arglists"><li>(<span class="var-name">await</span> &amp; agents)</li></ul><div class="var-docstring"><p>Blocks the current thread (indefinitely!) until all actions
  dispatched thus far, from this thread or agent, to the agent(s) have
  occurred.</p></div><div class="var-source"><pre>; clojure/core.clj:1792
(defn await
  [&amp; agents]
  (io! &quot;await in transaction&quot;
    (when *agent*
      (throw (new Exception &quot;Can't await in agent action&quot;)))
    (let [latch (new java.util.concurrent.CountDownLatch (count agents))
          count-down (fn [agent] (. latch (countDown)) agent)]
      (doseq [agent agents]
        (send agent count-down))
      (. latch (await)))))</pre></div><div class="license"><p>Copyright (c) Rich Hickey. All rights reserved.</p><p>The use and distribution terms for this software are covered by the <a href="http://opensource.org/licenses/eclipse-1.0.php">Eclipse Public License 1.0</a>, which can be found in the file
          epl-v10.html at the root of this distribution. By using this software
          in any fashion, you are agreeing to be bound by the terms of this
          license. You must not remove this notice, or any other, from this
          software.</p></div></div>